Football helmet



FIG. 1 is a perspective view of the football helmet showing the new design;

FIG. 2 is a right side view of a football helmet;

FIG. 3 is a left side view of a football helmet;

FIG. 4 is a rear view of a football helmet;

FIG. 5 is a top view of a football helmet; and,

FIG. 6 is a top-front perspective view of a football helmet. 

CLAIM The ornamental design for a football helmet, as shown and described. 